I recently bought STALKER on Steam because of the good price, because I've got a new PC and had heard a lot about it. Nearing the end of the game (I have to add that it's a very good game, despite a few hiccups) I was looking into Clear Sky for more of the same. I'm not sure whether to buy it though... I've heard both good and bad about it. I also read about a few mods that would "improve the experience". I play the original STALKER without mods. So is it worth getting? What mods should I get, in your opinion, that would make the game better? More importantly, are those mods stable, as in, they don't make the game crash?